print Exp(3.1)
print Log(17.4)
print Sqr(11.17)
print Atn(0.5)
print Cos(3.14 / 4)
print Sin(3.14 / 2)
print Tan(3.14 / 4)
print Abs(-3.5)
print Cdbl(17)
print Cint(17.3)
print Csng(204)
print Fix(-2.2)
print Int(7.7)
print Sgn(33.2)
print Sgn(-800)
